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#!/usr/bin/python
# print MappingInsn.inc file from LLVM GenAsmMatcher.inc, for Capstone disassembler.
# by Nguyen Anh Quynh, 2019
import sys
if len(sys.argv) == 1:
print("Syntax: %s <GenAsmMatcher.inc> <GenInstrInfo.inc> MappingInsn.inc" %sys.argv[0])
sys.exit(1)
f = open(sys.argv[3])
mapping = f.readlines()
f.close()
print("""/* Capstone Disassembly Engine, http://www.capstone-engine.org */
/* This is auto-gen data for Capstone disassembly engine (www.capstone-engine.org) */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */
""")
# lib/Target/X86/X86GenAsmMatcher.inc
# static const MatchEntry MatchTable1[] = {
# { 0 /* aaa */, X86::AAA, Convert_NoOperands, Feature_Not64BitMode, { }, },
# extract insn from GenAsmMatcher Table
# return (arch, mnem, insn_id)
def extract_insn(line):
tmp = line.split(',')
insn_raw = tmp[1].strip()
insn_mnem = tmp[0].split(' ')[3]
# X86 mov.s
if '.' in insn_mnem:
tmp = insn_mnem.split('.')
insn_mnem = tmp[0]
tmp = insn_raw.split('::')
arch = tmp[0]
# AArch64 -> ARM64
#if arch.upper() == 'AARCH64':
# arch = 'ARM64'
return (arch, insn_mnem, tmp[1])
# extract all insn lines from GenAsmMatcher
# return arch, first_insn, insn_id_list
def extract_matcher(filename):
f = open(filename)
lines = f.readlines()
f.close()
match_count = 0
insn_id_list = {}
arch = None
first_insn = None
pattern = None
# first we try to find Table1, or Table0
for line in lines:
if 'MatchEntry MatchTable0[] = {' in line.strip():
pattern = 'MatchEntry MatchTable0[] = {'
elif 'AArch64::' in line and pattern:
# We do not care about Apple Assembly
break
elif 'MatchEntry MatchTable1[] = {' in line.strip():
pattern = 'MatchEntry MatchTable1[] = {'
# last pattern, done
break
for line in lines:
line = line.rstrip()
# skip empty line
if len(line.strip()) == 0:
continue
if pattern in line.strip():
match_count += 1
#print(line.strip())
continue
line = line.strip()
if match_count == 1:
if line == '};':
# done with first enum
break
else:
_arch, mnem, insn_id = extract_insn(line)
# skip pseudo instructions
if not mnem.startswith('__'):
# PPC
if mnem.endswith('-') or mnem.endswith('+'):
mnem = mnem[:-1]
if not first_insn:
arch, first_insn = _arch, insn_id
if not insn_id in insn_id_list:
# save this
insn_id_list[insn_id] = mnem
#return arch, first_insn, insn_id_list
return arch, first_insn, insn_id_list
#arch, first_insn, insn_id_list, match_lines = extract_matcher(sys.argv[1])
arch, first_insn, insn_id_list = extract_matcher(sys.argv[1])
#arch = arch.upper()
#print("first insn = %s" %first_insn)
#for line in insn_id_list:
# print(line)
#{
# X86_AAA, X86_INS_AAA,
##ifndef CAPSTONE_DIET
# { 0 }, { 0 }, { X86_GRP_NOT64BITMODE, 0 }, 0, 0
##endif
#},
def print_entry(arch, insn_id, mnem, mapping, mnem_can_be_wrong):
#insn = "%s_%s" %(arch.upper(), insn_id)
insn = "%s_%s" %(arch, insn_id)
arch1 = arch
if arch.upper() == 'AARCH64':
arch1 = 'ARM64'
#if '64' in insn_id:
# is64bit = '1'
#else:
# is64bit = '0'
# first, try to find this entry in old MappingInsn.inc file
for i in range(len(mapping)):
tmp = mapping[i].split(',')
if tmp[0].strip() == insn:
if not mnem_can_be_wrong:
print('''
{
\t%s, %s_INS_%s,
#ifndef CAPSTONE_DIET
\t%s
#endif
},'''% (insn, arch1, mnem, mapping[i + 2].strip()))
else: # ATTENTION: mnem can be wrong
if not tmp[1].endswith(mnem):
#print("======== cannot find %s, mapping to %s (instead of %s)" %(insn, tmp[1].strip(), mnem))
pass
print('''
{
\t%s, %s,
#ifndef CAPSTONE_DIET
\t%s
#endif
},'''% (insn, tmp[1].strip(), mapping[i + 2].strip()))
return
if mnem_can_be_wrong:
#print("======== CANNOT FIND %s, mapping to %s" %(insn, mnem))
return
pass
# this insn does not exist in mapping table
print('''
{
\t%s, %s_INS_%s,
#ifndef CAPSTONE_DIET
\t{ 0 }, { 0 }, { 0 }, 0, 0
#endif
},'''% (insn, arch1, mnem))
# extract from GenInstrInfo.inc, because the insn id is in order
enum_count = 0
meet_insn = False
f = open(sys.argv[2])
lines = f.readlines()
f.close()
count = 0
last_mnem = None
# 1st enum is register enum
for line in lines:
line = line.rstrip()
if len(line.strip()) == 0:
continue
# skip pseudo instructions
if len(line.strip()) == 0:
continue
if line.strip() == 'enum {':
enum_count += 1
#print(line.strip())
continue
line = line.strip()
if enum_count == 1:
# skip pseudo instructions
if '__' in line or 'setjmp' in line or 'longjmp' in line or 'Pseudo' in line:
continue
elif 'INSTRUCTION_LIST_END' in line:
break
else:
insn = line.split('=')[0].strip()
'''
insn = None
if meet_insn:
# enum items
insn = line.split('=')[0].strip()
if 'CALLSTACK' in insn or 'TAILJUMP' in insn:
# pseudo instruction
insn = None
elif line.startswith(first_insn):
insn = line.split('=')[0].strip()
meet_insn = True
if insn:
count += 1
if insn == 'BSWAP16r_BAD':
last_mnem = 'BSWAP'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMOVNP_Fp32':
last_mnem = 'FCMOVNP'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMOVP_Fp3':
last_mnem = 'FCMOVP'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMPSDrm_Int':
last_mnem = 'CMPSD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'MOVSX16rm16':
last_mnem = 'MOVSX'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'MOVZX16rm16':
last_mnem = 'MOVZX'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'ST_Fp32m':
last_mnem = 'FST'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMOVNP_Fp64':
last_mnem = 'FCMOVNU'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMPSDrr_Int':
last_mnem = 'CMPSD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'CMPSSrm_Int':
last_mnem = 'CMPSS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCMPSDrm_Int':
last_mnem = 'VCMPSD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCMPSSrm_Int':
last_mnem = 'VCMPSS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VPCMOVYrrr_REV':
last_mnem = 'VPCMOV'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VRNDSCALESDZm':
last_mnem = 'VRNDSCALESD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VRNDSCALESSZm':
last_mnem = 'VRNDSCALESS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMAXCPDZ128rm':
last_mnem = 'VMAXPD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMAXCPSZ128rm':
last_mnem = 'VMAXPS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMAXCSDZrm':
last_mnem = 'VMAXSD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMAXCSSZrm':
last_mnem = 'VMAXSS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMINCPDZ128rm':
last_mnem = 'VMINPD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMINCPSZ128rm':
last_mnem = 'VMINPS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMINCSDZrm':
last_mnem = 'VMINSD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMINCSSZrm':
last_mnem = 'VMINSS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VMOV64toPQIZrm':
last_mnem = 'VMOVQ'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VPERMIL2PDYrr_REV':
last_mnem = 'VPERMILPD'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VPERMIL2PSYrr_REV':
last_mnem = 'VPERMILPS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCVTSD2SI64Zrm_Int':
last_mnem = 'VCVTSD2SI'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCVTSD2SSrm_Int':
last_mnem = 'VCVTSD2SS'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCVTSS2SI64Zrm_Int':
last_mnem = 'VCVTSS2SI'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCVTTSD2SI64Zrm_Int':
last_mnem = 'VCVTTSD2SI'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn == 'VCVTTSS2SI64Zrm_Int':
last_mnem = 'VCVTTSS2SI'
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFMSUBADD'):
if insn[len('VFMSUBADD')].isdigit():
last_mnem = insn[:len('VFMSUBADD123xy')]
else:
last_mnem = insn[:len('VFMSUBADDSS')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFMADDSUB'):
if insn[len('VFMADDSUB')].isdigit():
last_mnem = insn[:len('VFMADDSUB123xy')]
else:
last_mnem = insn[:len('VFMADDSUBSS')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFMADD'):
if insn[len('VFMADD')].isdigit():
last_mnem = insn[:len('VFMADD123PD')]
else:
last_mnem = insn[:len('VFMADDPD')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFMSUB'):
if insn[len('VFMSUB')].isdigit():
last_mnem = insn[:len('VFMSUB123PD')]
else:
last_mnem = insn[:len('VFMSUBPD')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFNMADD'):
if insn[len('VFNMADD')].isdigit():
last_mnem = insn[:len('VFNMADD123xy')]
else:
last_mnem = insn[:len('VFNMADDSS')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
elif insn.startswith('VFNMSUB'):
if insn[len('VFNMSUB')].isdigit():
last_mnem = insn[:len('VFNMSUB123xy')]
else:
last_mnem = insn[:len('VFNMSUBSS')]
print_entry(arch.upper(), insn, last_mnem, mapping, False)
'''
if insn in insn_id_list:
# trust old mapping table
last_mnem = insn_id_list[insn].upper()
print_entry(arch, insn, insn_id_list[insn].upper(), mapping, False)
else:
# the last option when we cannot find mnem: use the last good mnem
print_entry(arch, insn, last_mnem, mapping, True)
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